refactor: Add auto-generated comment to commands.php file

Also mark /data folder as non-publishable.

Author: xemlock

.gitattributes

@@ -1,9 +1,10 @@
 * text=auto
 
-/tests              export-ignore
 /.editorconfig      export-ignore
 /.gitattributes     export-ignore
 /.github            export-ignore
 /.gitignore         export-ignore
 /.scripts           export-ignore
+/data               export-ignore
+/tests              export-ignore
 /phpunit.xml.dist   export-ignore

data/compile.php

@@ -84,7 +84,11 @@
 });
 
 $php = str_replace('  ', '    ', var_export($commands, true));
+$php = preg_replace('#^array \(#', 'array(', $php);
 $php = preg_replace('#\s+=>\s+array \(#', " => array(", $php);
 
-file_put_contents(dirname(__FILE__) . '/../library/PhpLatex/commands.php', '<?php return ' . $php . ";\n");
+file_put_contents(
+    dirname(__FILE__) . '/../library/PhpLatex/commands.php',
+    "<?php // File generated automatically by " . basename(__FILE__) . " script. DO NOT EDIT.\n\nreturn {$php};\n"
+);
 

library/PhpLatex/commands.php

@@ -1,4 +1,6 @@
-<?php return array (
+<?php // File generated automatically by compile.php script. DO NOT EDIT.
+
+return array(
     '\\ ' => array(
         'mode' => 'both',
         'numArgs' => 0,